EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

Find the product of LCM and HCF of
{10,8,27,14}

(i)

7561
(ii)

7559
(iii)

7562
(iv)

7560
(v)

7558

Question 2

2.

The common multiples of 7 and 3 =

(i)

{21,63,84,105,202}
(ii)

{21,42,63,105,71}
(iii)

{21,42,63,84,105}
(iv)

{21,63,84,105,67}
(v)

{21,42,84,105,113}

Question 3

3.

Find the prime factorization of
8100

(i)

4 2

✕

3 4

✕

5 2
(ii)

2

✕

3 4

✕

5 2
(iii)

2 2

✕

3 4

✕

5 2
(iv)

2 2

✕

3 4

✕

5 3
(v)

(-1) 2

✕

3 4

✕

5 2

Question 4

4.

Find all common factors of 26 , 30 and 38

(i)

{1,2,13}
(ii)

{1,2,10}
(iii)

{1,2}
(iv)

{2,26}
(v)

{1,10}

Question 5

5.

Find all common factors of 2 , 50 and 6

(i)

{1,2,0}
(ii)

{2,0}
(iii)

{1,2}
(iv)

{1,2,10}
(v)

{1,50}

Question 6

6.

Find the HCF of
{15,4}

(i)

1
(ii)

3
(iii)

(-2)
(iv)

2
(v)

0

Question 7

7.

The factors of 83 =

(i)

{1,83}
(ii)

{83,2}
(iii)

{1,83,2,82}
(iv)

{82,2}
(v)

{1,83,82}

Question 8

8.

Find the product of LCM and HCF of
{16,10,21}

(i)

1680
(ii)

1679
(iii)

1677
(iv)

1682
(v)

1681

Question 9

9.

Which of the following numbers is divisible by 6?

(i)

3942
(ii)

3944
(iii)

3943
(iv)

3941
(v)

3940

Question 10

10.

Find the H.C.F of
12
14

,

12
10

(i)

1
68
(ii)

1
70
(iii)

1
72
(iv)

3
70
(v)

(
-1
70
)

Question 11

11.

Find the LCM of
{4,8}

(i)

8
(ii)

9
(iii)

11
(iv)

6
(v)

7

Question 12

12.

Find the number of prime factors of
12

(i)

3
(ii)

4
(iii)

0
(iv)

1
(v)

2

Question 13

13.

The multiples of 7 =

(i)

{7,14,21,28,35,42,27}
(ii)

{14,21,28,35,42,27}
(iii)

{7,28,35,42,34,15}
(iv)

{7,14,21,28,35,42}
(v)

{7,14,21,28,35,42,34,22}

Question 14

14.

Find the HCF of
{20,32,9,38}

(i)

1
(ii)

(-1)
(iii)

2
(iv)

0
(v)

4

Question 15

15.

The common multiples of 8 , 9 and 4 =

(i)

{144,208}
(ii)

{72,278}
(iii)

{144,39}
(iv)

{72,144}
(v)

{144,33}

Question 16

16.

Find the LCM of
{225,135,30}

(i)

1349
(ii)

1353
(iii)

1350
(iv)

1351
(v)

1348

Question 17

17.

Which of the following numbers is divisible by 9?

(i)

6507
(ii)

6505
(iii)

6509
(iv)

6508
(v)

6506

Question 18

18.

Find the prime factorization of
39

(i)

3

✕

13 2
(ii)

3

✕

13
(iii)

2

✕

13
(iv)

5

✕

13
(v)

1

✕

13

Question 19

19.

Find the L.C.M of
26
28

,

30
33

(i)

390
(ii)

387
(iii)

391
(iv)

392
(v)

389

Question 20

20.

Find the H.C.F of
4
14

,

9
14

,

4
10

(i)

(
-1
70
)
(ii)

1
72
(iii)

1
70
(iv)

1
68
(v)

3
70

Question 21

21.

Find the HCF of
{27,34}

(i)

1
(ii)

2
(iii)

4
(iv)

0
(v)

(-2)

Question 22

22.

Find the LCM of
{30,12,60,90}

(i)

179
(ii)

181
(iii)

180
(iv)

178
(v)

183

Question 23

23.

Find the H.C.F of
25
15

,

20
24

(i)

1
24
(ii)

5
118
(iii)

1
40
(iv)

5
122
(v)

7
120

Question 24

24.

Find the LCM of
{60,150}

(i)

297
(ii)

302
(iii)

301
(iv)

299
(v)

300

Question 25

25.

The factors of 14 =

(i)

{1,2,7,6}
(ii)

{1,2,7,14}
(iii)

{1,2,7,14,6,13}
(iv)

{2,7,6,13}

Assignment Key